The RING,WEARING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4320-00-821-0809, indicating validated use in U.S.
government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.
WHERE IT FITS
B139A
NSN:4320-00-821-0809 FSC:4320 — Power and Hand Pumps CAGE:63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
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FREQUENTLY ASKED QUESTIONS
What is B139A?
B139A is a RING,WEARING.
What parts can replace B139A?
There are 2 known substitutes for B139A: 55-22344-190S, L-2206. Substitute compatibility should be verified for your specific system.
What is the NSN for B139A?
B139A is cataloged in the U.S. Government catalog under NSN 4320-00-821-0809. This indicates validated use in U.S. government and defense supply chains.
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